Game patch 26.20Data Dragon 16.20.1
Reference patch 16.20.1
the Redeemer
Senna is a ranged damage dealer who needs safe spacing and time to keep attacking. This overview keeps the explanation practical and leaves patch-sensitive numbers to Riot's structured data and the current in-game tooltip.
Usual roleBot · SupportStrengths and limits
These are kit-level patterns, not a promise that every lane or matchup plays the same way.
Practical champion reading
Use these patterns to ask better questions before choosing an item, target or commitment. They describe the kit, not a guaranteed result.
Armour can reduce the broad physical profile. Separate basic attacks from physical abilities before relying on an item passive that only affects attacks.
The threat grows while this champion can keep attacking a useful target. Break target access, create distance or use control before the repeated pattern settles in.
Ranged attacks are useful only while a safe line to the target remains. Flanks, hard control and blocked escape routes can remove that advantage quickly.
Protection, setup and information can matter more than personal damage. Position so the next useful spell can reach the ally or target that needs it.
Tenacity can shorten only eligible control. Displacements, airborne effects and repeated slows need their own positioning, blocking or movement answer.
Anti-heal or anti-shielding is situational. Buy it only when the effect is materially protecting targets and your champion can apply the answer reliably.
A spell being available does not mean the complete sequence is sustainable. Watch the resource bar as well as the setup and escape cooldowns.
Defensive item reference
Start with the threat that is actually affecting the match. These are conditional comparisons, not an automatic counter build.
Armour and attack reduction address repeated physical basic attacks. The passive does not reduce every physical ability.
Choose Mercury's Treads instead when magic damage or reducible crowd control across the full team matters more.Normal Draft and Ranked role map
Each lane is assessed separately. Open a role to reach its queue-specific build and matchup preparation.
Historical reference. Recommendation review pending. Senna is normally played Bot or Support and does not currently have a reviewed Top route. Top usually needs independent laning, durable trading or reliable side-lane pressure. Treat this as a deliberate experiment, not a standard recommendation.
Historical reference. Recommendation review pending. Senna is normally played Bot or Support and does not currently have a reviewed Jungle route. Jungle usually needs repeatable monster clear, safe pathing and objective control without lane income. Treat this as a deliberate experiment, not a standard recommendation.
Historical reference. Recommendation review pending. Senna is normally played Bot or Support and does not currently have a reviewed Mid route. Mid usually needs solo-lane safety plus wave control, roaming or reliable burst pressure. Treat this as a deliberate experiment, not a standard recommendation.
Historical reference. Recommendation review pending. Senna has an established Bot carry plan that can scale through shared-lane farm and work with a Support partner.
Historical reference. Recommendation review pending. Senna has an established low-income Support plan with useful lane pressure, protection, engage or team utility.
Kit reference
Ability names, descriptions and numeric fields come from Riot Data Dragon. Practical reads are independently written; the current in-game tooltip remains authoritative.
What it doesWhen units die near Senna, their souls are periodically trapped by the Black Mist. Senna can attack these souls to free them, absorbing the Mist that held them in death. Mist fuels her Relic Cannon's power with increased Attack Damage, Attack Range, and Critical Strike Chance. Attacks from Senna's Relic Cannon take longer to fire, deal bonus damage, and briefly grant her a portion of her target's Move Speed.
Practical readAbsolution is an automatic part of the kit involving damage. Track when its condition is active instead of treating every fight the same way.
What it doesFrom the twin barrels of her Relic Cannon, Senna fires a unified beam of light and shadow through a target, healing allies and damaging enemies.
Practical readPiercing Darkness is a ranged cast involving protection or sustain. Respect its line or target area, and avoid spending it when the opponent can simply step away before the important exchange.
The protection or sustain is part of the cast's value. Compare its timing with incoming damage rather than reading only the offensive effect.
What it doesSenna sends forth a wave of Black Mist. If it hits an enemy it latches onto them hungrily, rooting them and everything nearby after a brief delay.
Practical readLast Embrace is part of Senna's W pattern. Read its listed effect first, then track the cooldown and condition that make the next use valuable.
What it doesSenna draws the Mist she has stored in her weapon into a storm around her, embracing darkness and becoming a wraith within. Allies who enter the area are camouflaged and also appear as wraiths as the Mist shrouds them. Wraiths gain increased Move Speed, are unselectable, and hide their identities.
Practical readCurse of the Black Mist is part of Senna's E pattern. Read its listed effect first, then track the cooldown and condition that make the next use valuable.
What it doesSenna calls upon the relic stones of fallen Sentinels, splitting her relic cannon into a holy array of shadow and light. She then fires a global beam that shields allies from harm, while damaging enemies caught in the center.
Practical readDawning Shadow is a ranged cast involving its listed effect. Respect its line or target area, and avoid spending it when the opponent can simply step away before the important exchange.
The protection or sustain is part of the cast's value. Compare its timing with incoming damage rather than reading only the offensive effect.
Levels 1–18
Base values exclude items, runes, temporary buffs and mode-specific modifiers. Cooldowns are the listed base cooldown before ability haste.
Cooldown Data Dragon 16.20.1
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Can receive its first point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
First rank becomes available at level 6; later ranks normally become available at levels 11 and 16.
| Level | Health | Mana | Ability milestone |
|---|---|---|---|
| 1 | 530 | 350 Mana | Choose the first basic ability |
| 2 | 594 | 382 Mana | Add another basic ability or rank |
| 3 | 661 | 416 Mana | Add another basic ability or rank |
| 4 | 732 | 452 Mana | Spend one ability point |
| 5 | 805 | 489 Mana | Spend one ability point |
| 6 | 882 | 528 Mana | First ultimate rank normally available |
| 7 | 961 | 568 Mana | Spend one ability point |
| 8 | 1,044 | 610 Mana | Spend one ability point |
| 9 | 1,130 | 653 Mana | Spend one ability point |
| 10 | 1,219 | 698 Mana | Spend one ability point |
| 11 | 1,311 | 745 Mana | Second ultimate rank normally available |
| 12 | 1,406 | 793 Mana | Spend one ability point |
| 13 | 1,505 | 843 Mana | Spend one ability point |
| 14 | 1,606 | 894 Mana | Spend one ability point |
| 15 | 1,711 | 947 Mana | Spend one ability point |
| 16 | 1,818 | 1,001 Mana | Final ultimate rank normally available |
| 17 | 1,929 | 1,057 Mana | Spend one ability point |
| 18 | 2,043 | 1,115 Mana | Spend one ability point |
Choose the next question
Choose a queue-aware build, compare a lane opponent, or return to the full champion library.
